/*
 * flc.c - 有趣的常量
 */

#include <stdio.h>
#define COLS 4
int sum2d(const int arr[][COLS], int rows);
int sum(const int arr[], int n);
int main(void)
{
    int total1 , total2, total3;
    int * pt1;
    int(*pt2)[COLS];

    pt1 = (int[2]) {10,20};
    pt2 = (int[2][COLS]){ {1,2,3,-9}, {4,5,6,-8}};
    total1 = sum(pt1, 2);
    total2 = sum2d(pt2, 2);
    total3 = sum((int[]){4,4,4,5,5,5}, 6);
    printf("total1 = %d\n", total1);
    printf("total2 = %d\n", total2);
    printf("total3 = %d\n", total3);
    return 0;
}

int sum(const int ar[], int n)
{
    int i;
    int total = 0;
    for(i = 0; i < n ; i ++) {
        total += ar[i];
    }

    return total;
}

int sum2d(const int ar[][COLS], int rows) {
    int r;
    int c;
    int tot = 0;
    for(r = 0; r < rows; r++) {
        for(c = 0; c < COLS; c ++) {
            tot += ar[r][c];
        }
    }
    return tot;
}

